It is a full kit from Dyer Blowers Mirada and it includes the blower, intake, pulleys, belt, basically a whole supercharger ready to go kit without carbs. The size would be a 671, which I still have no idea what that really means besides size.
The supercharger company may be right, a 360 may only hold 5 psi at 6000 rpm (for example) using their compressor because that is all it can supply. If you overdrive it, the compressor speed may be higher than it was designed/rated for.
They said the low boost was due to the fact the bottom end would not hold up to more than that, but if I had forged rotating assembly I could push within reason "As much as I want". They did state with a 360 it would be under driven, but I am looking for a blower setup I could potentially move to a big block or stroked out small block. Any idea what hughes would charge for the re-drill? I have a friend that does cylinder head machine work but I know he does not have a jig of any kind to do it. Some people claim they used slanted washers on the bolts to fit the straight down Magnum bolt pattern to the slanted LA intake, but Im not sure if I want to play around with a boosted setups intake bolts, stuff happens.